I have ______ my husband again and again not to smoke , but I can’t ______ him．

Children __________swim in the river without adults(成年人).

Mary is always ready to do some __ work at the local geracomium（敬老院）in her spare time.

It was a hard time for those students because of losing the game, but they did not ______ hope.

It’s difficult to live in a foreign country, if you can’t speak foreign languages.